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Preliminary study of embryo development following assessment of male and female gametes. 2008

H Nadir Ciray, and Onder Coban, and Asina Bayram, and Ali Kizilkanat, and Mustafa Bahçeci
Assisted Conception Unit, German Hospital Istanbul and Bahçeci Women Health Care Centre, Siraselviler Cd. 119, 80860, Istanbul, Turkey. nadirc@superonline.com

Gamete characteristics are likely to contribute to embryo development. In this preliminary study, early parameters were assessed in embryos generated following microinjection of hyaluronan-bound and unbound spermatozoa into 176 sibling oocytes, which had themselves been assessed using a polarizing light microscope imaging system. The fertilization and early cleavage rates, and day 3 embryo quality did not differ when oocytes displaying similar characteristics were inseminated with either bound or unbound sperm. Regardless of the binding characteristics of the sperm, early embryos displaying good and poor quality derived from oocytes displaying visible spindles and similar characteristics. These results indicate that early embryo developmental characteristics were independent from the hyaluronic acid binding capacity of the sperm when oocytes displayed a visible spindle.

UI MeSH Term Description Entries
D008297 Male Males
D008859 Microscopy, Polarization Microscopy using polarized light in which phenomena due to the preferential orientation of optical properties with respect to the vibration plane of the polarized light are made visible and correlated parameters are made measurable. Microscopy, Polarized Light,Polarization Microscopy,Light Microscopies, Polarized,Light Microscopy, Polarized,Microscopies, Polarization,Microscopies, Polarized Light,Polarization Microscopies,Polarized Light Microscopies,Polarized Light Microscopy
D009865 Oocytes Female germ cells derived from OOGONIA and termed OOCYTES when they enter MEIOSIS. The primary oocytes begin meiosis but are arrested at the diplotene state until OVULATION at PUBERTY to give rise to haploid secondary oocytes or ova (OVUM). Ovocytes,Oocyte,Ovocyte
D010865 Pilot Projects Small-scale tests of methods and procedures to be used on a larger scale if the pilot study demonstrates that these methods and procedures can work. Pilot Studies,Pilot Study,Pilot Project,Project, Pilot,Projects, Pilot,Studies, Pilot,Study, Pilot
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D005260 Female Females
D005307 Fertilization in Vitro An assisted reproductive technique that includes the direct handling and manipulation of oocytes and sperm to achieve fertilization in vitro. Test-Tube Fertilization,Fertilizations in Vitro,In Vitro Fertilization,Test-Tube Babies,Babies, Test-Tube,Baby, Test-Tube,Fertilization, Test-Tube,Fertilizations, Test-Tube,In Vitro Fertilizations,Test Tube Babies,Test Tube Fertilization,Test-Tube Baby,Test-Tube Fertilizations
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006820 Hyaluronic Acid A natural high-viscosity mucopolysaccharide with alternating beta (1-3) glucuronide and beta (1-4) glucosaminidic bonds. It is found in the UMBILICAL CORD, in VITREOUS BODY and in SYNOVIAL FLUID. A high urinary level is found in PROGERIA. Amo Vitrax,Amvisc,Biolon,Etamucine,Healon,Hyaluronan,Hyaluronate Sodium,Hyvisc,Luronit,Sodium Hyaluronate,Acid, Hyaluronic,Hyaluronate, Sodium,Vitrax, Amo
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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